Study of baryon-baryon interactions and nuclear properties in the quark cluster model

Abstract

The author discusses the application of the quark cluster model to the baryon-baryon interaction. The short-range repulsion and spin-orbit force in the nucleon-nucleon potential are shown to be well described by the quark-quark interaction and quark exchange between the two nucleons. An extension of the study to systems with strangeness is made. There the author studies more details about the effect coming from the composite structure of the baryon and the quark-quark interaction. The dihyperon, which is a flavour SU(3) singlet state, is also discussed in terms of the quark cluster model. Finally the effects of quark degrees of freedom in nuclei, especially on the electromagnetic properties of the deuteron, are studied and compared with the results of conventional nuclear theory.